/****************************************************************************

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** General Public License version 2.1 as published by the Free Software

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****************************************************************************/

#ifndef QDBUSREPLY_H

#define QDBUSREPLY_H

#include <QtCore/qglobal.h>

#include <QtCore/qvariant.h>

#include <QtDBus/qdbusmacros.h>

#include <QtDBus/qdbusmessage.h>

#include <QtDBus/qdbuserror.h>

#include <QtDBus/qdbusextratypes.h>

#include <QtDBus/qdbuspendingreply.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(DBus)

QDBUS_EXPORT void qDBusReplyFill(const QDBusMessage &reply, QDBusError &error, QVariant &data);

template<typename T>

class QDBusReply

{

    typedef T Type;

public:

    inline QDBusReply(const QDBusMessage &reply)

    {

        *this = reply;

    }

    inline QDBusReply& operator=(const QDBusMessage &reply)

    {

        QVariant data(qMetaTypeId(&m_data), reinterpret_cast<void*>(0));

        qDBusReplyFill(reply, m_error, data);

        m_data = qvariant_cast<Type>(data);

        return *this;

    }

    inline QDBusReply(const QDBusPendingCall &pcall)

    {

        *this = pcall;

    }

    inline QDBusReply &operator=(const QDBusPendingCall &pcall)

    {

        QDBusPendingCall other(pcall);

        other.waitForFinished();

        return *this = other.reply();

    }

    inline QDBusReply(const QDBusPendingReply<T> &reply)

    {

        *this = static_cast<QDBusPendingCall>(reply);

    }

    inline QDBusReply(const QDBusError &dbusError = QDBusError())

        : m_error(dbusError), m_data(Type())

    {

    }

    inline QDBusReply& operator=(const QDBusError& dbusError)

    {

        m_error = dbusError;

        m_data = Type();

        return *this;

    }

    inline QDBusReply& operator=(const QDBusReply& other)

    {

        m_error = other.m_error;

        m_data = other.m_data;

        return *this;

    }

    inline bool isValid() const { return !m_error.isValid(); }

    inline const QDBusError& error() { return m_error; }

    inline Type value() const

    {

        return m_data;

    }

    inline operator Type () const

    {

        return m_data;

    }

private:

    QDBusError m_error;

    Type m_data;

};

# ifndef Q_QDOC

// specialize for QVariant:

template<> inline QDBusReply<QVariant>&

QDBusReply<QVariant>::operator=(const QDBusMessage &reply)

{

    void *null = 0;

    QVariant data(qMetaTypeId<QDBusVariant>(), null);

    qDBusReplyFill(reply, m_error, data);

    m_data = qvariant_cast<QDBusVariant>(data).variant();

    return *this;

}

// specialize for void:

template<>

class QDBusReply<void>

{

public:

    inline QDBusReply(const QDBusMessage &reply)

        : m_error(reply)

    {

    }

    inline QDBusReply& operator=(const QDBusMessage &reply)

    {

        m_error = reply;

        return *this;

    }

    inline QDBusReply(const QDBusError &dbusError = QDBusError())

        : m_error(dbusError)

    {

    }

    inline QDBusReply(const QDBusPendingCall &pcall)

    {

        *this = pcall;

    }

    inline QDBusReply &operator=(const QDBusPendingCall &pcall)

    {

        QDBusPendingCall other(pcall);

        other.waitForFinished();

        return *this = other.reply();

    }

    inline QDBusReply& operator=(const QDBusError& dbusError)

    {

        m_error = dbusError;

        return *this;

    }

    inline QDBusReply& operator=(const QDBusReply& other)

    {

        m_error = other.m_error;

        return *this;

    }

    inline bool isValid() const { return !m_error.isValid(); }

    inline const QDBusError& error() { return m_error; }

private:

    QDBusError m_error;

};

# endif

QT_END_NAMESPACE

QT_END_HEADER

#endif